For Hawaiʻi's Growing Communities

Whether you’re expanding housing off-grid or connecting to an at-capacity sewer, Mata provides scalable, above-ground solids separation that keeps projects moving and simplifies the waste stream.

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Mata Solid Waste Interceptor

Drawing of a mata installed next to a post and pier home with it's outflow going to a an undefined disposal location.

As Hawaiʻi grows, many developments face the same sewerage challenges. Sewer systems and treatment facilities may be too distant or overloaded while excavation for septic systems can drive up costs and result in archaeological findings and delays.

Mata captures solids locally and liquids are pumped via a small diameter line to the nearest sewer or WaiHome's at-grade leachfield product, Sawa.

✓ Easy Install
✓ Space-Saving
✓ Eco-Friendly

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Key Features

Cost + Phasing

Mata’s modular design grows with each stage of development, allowing flexible expansion over time.

Sewer Capacity Limits

Mata eases the load on nearby sewers and WWTP's, permitting more connections for growing communities.

Environmental Standards

Mata removes solid nutrients and organics before they solubilize in the sewer, greatly reducing pollution.

Simplified Permitting

Mata is permitted as a UPC §1009 Solid Waste Interceptor with a standard plumbing permit.

No Odor

Post separation solids are dehydrated and odorless. Air from the system is filtered and vented away from your home.

Online Monitoring

WaiHome makes sure your system is healthy and the dehydrated solids are emptied as needed.

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Install Process

01 | Install Concrete Pad

A 3" concrete pad is installed at each home to provide a stable foundation for its Mata.

02 | Install Mata on Household Sewer

The Mata receives a 3" wastewater pipe at a minimum height of 16" above grade.

03 | Install Vent and Overflow

The Mata is vented to your roof line. 24 hrs of emergency water storage or gravity overflow to disposal is installed.

04 | Install Low Pressure Liquid Discharge

The treated liquid can be directed to a nearby sewer or WaiHome's at-grade leachfield product.

01 | Install Concrete Pad

A 3" concrete pad is installed at each home to provide a stable foundation for its Mata.

03 | Install Vent and Overflow

The Mata is vented to your roof line. 24 hrs of emergency water storage or gravity overflow to disposal is installed.

02 | Install Mata on Household Sewer

The Mata receives a 3" wastewater pipe at a minimum height of 16" above grade.

04 | Install Low Pressure Liquid Discharge

The treated liquid can be directed to a nearby sewer or WaiHome's at-grade leachfield product.

Mata and the Mandate

Currently, Mata is a UPC 1009 compliant solids separator, meaning it just needs an over-the-counter plumbing permit and install by a licensed plumber.

However, our work doesn’t stop with Mata. We’re also developing Patu and Sawa — excavation free liquid treatment and disposal systems that work with Mata to complete your cesspool replacement before the 2050 deadline. We are currently in the review process with the Department of Health for approval as an alternative technology to meet Act 125.

Mata Maintenance

Mata separates solids from raw sewage and then dehydrates and steralizes them for disposal. The inclusion of two solids bins allows one bin to be filling while the second is drying. Solids are removed and the bins swapped once every 4-12 weeks depending on your usage.

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